*, *:before, *:after {
  box-sizing: border-box;
  margin: 0;
}

body {
  background: #1C182F;
}

.demo {
  overflow: hidden;
  position: absolute;
  width: 100%;
  height: 100%;
  background: #CDDBEE;
  border-radius: 6px;
}
.demo__close-menu {
  position: absolute;
  left: 22px;
  top: 22px;
  width: 29px;
  cursor: pointer;
}
.demo__close-menu:before, .demo__close-menu:after {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 100%;
  height: 4px;
  background: #7097B0;
}
.demo__close-menu:before {
  -webkit-transform: rotate(45deg);
          transform: rotate(45deg);
}
.demo__close-menu:after {
  -webkit-transform: rotate(-45deg);
          transform: rotate(-45deg);
}
.demo__section {
  z-index: 1;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  padding: 25px 0 0 0;
  border-radius: inherit;
  -webkit-transition: -webkit-transform 0.4s;
  transition: -webkit-transform 0.4s;
  transition: transform 0.4s;
  transition: transform 0.4s, -webkit-transform 0.4s;
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
  will-change: transform;
}
.demo.menu-active .demo__section-1 {
  -webkit-transform: translate3d(20px, 60px, 0);
          transform: translate3d(20px, 60px, 0);
}
.demo__section-1.inactive {
  -webkit-transform: translate3d(100%, 60px, 0);
          transform: translate3d(100%, 60px, 0);
}
.demo.menu-active .demo__section-2 {
  -webkit-transform: translate3d(40px, 120px, 0);
          transform: translate3d(40px, 120px, 0);
}
.demo__section-2.inactive {
  -webkit-transform: translate3d(100%, 120px, 0);
          transform: translate3d(100%, 120px, 0);
}
.demo.menu-active .demo__section-3 {
  -webkit-transform: translate3d(60px, 180px, 0);
          transform: translate3d(60px, 180px, 0);
}
.demo__section-3.inactive {
  -webkit-transform: translate3d(100%, 180px, 0);
          transform: translate3d(100%, 180px, 0);
}
.demo.menu-active .demo__section-4 {
  -webkit-transform: translate3d(80px, 240px, 0);
          transform: translate3d(80px, 240px, 0);
}
.demo__section-4.inactive {
  -webkit-transform: translate3d(100%, 240px, 0);
          transform: translate3d(100%, 240px, 0);
}
.demo.menu-active .demo__section {
  cursor: pointer;
}
.demo__section-1 {
  background: #563761;
}
.demo__section-1 .demo__section-heading,
.demo__section-1 .demo__menu-btn:before {
  color: #E57B60;
}
.demo__section-2 {
  background: #974b3d;
}
.demo__section-2 .demo__section-heading,
.demo__section-2 .demo__menu-btn:before {
  color: #FFE26F;
}
.demo__section-3 {
  background: #F3825F;
}
.demo__section-3 .demo__section-heading,
.demo__section-3 .demo__menu-btn:before {
  color: #AD4A5D;
}
.demo__section-4 {
  background: #FFE26F;
}
.demo__section-4 .demo__section-heading,
.demo__section-4 .demo__menu-btn:before {
  color: #AD4A5D;
}

.demo__section-heading {
  margin-left: 65px;
}

.demo__section-heading {
  text-transform: uppercase;
  font-size: 12px;
  -webkit-transition: -webkit-transform 0.4s;
  transition: -webkit-transform 0.4s;
  transition: transform 0.4s;
  transition: transform 0.4s, -webkit-transform 0.4s;
}
.demo.menu-active .demo__section-heading {
  -webkit-transform: translateX(-45px);
          transform: translateX(-45px);
}
.demo__menu-btn {
  position: absolute;
  left: 20px;
  top: 20px;
  width: 28px;
  height: 22px;
  -webkit-transition: opacity 0.2s 0.2s;
  transition: opacity 0.2s 0.2s;
  cursor: pointer;
}
.demo.menu-active .demo__menu-btn {
  pointer-events: none;
  opacity: 0;
  -webkit-transition: opacity 0.2s;
  transition: opacity 0.2s;
}
.demo__menu-btn:before {
  content: "";
  display: block;
  width: 100%;
  height: 3px;
  border-radius: 2px;
  background: currentColor;
  box-shadow: 0 8px, 0 16px;
}